The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 8566270 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 22, 2013

Filed:

Sep. 23, 2011
Applicants:

Tara N. Sainath, Burlington, MA (US);

Sameer R. Maskey, New York, NY (US);

Bhuvana Ramabhadran, Mount Kisco, NY (US);

Dimitri Kanevsky, Ossining, NY (US);

Inventors:

Tara N. Sainath, Burlington, MA (US);

Sameer R. Maskey, New York, NY (US);

Bhuvana Ramabhadran, Mount Kisco, NY (US);

Dimitri Kanevsky, Ossining, NY (US);

Assignee:

Nuance Communications, Inc., Burlington, MA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 17/00 (2006.01); G06N 5/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

A sparse representation method of text classification is described. An input text document is represented as a document feature vector y. A category dictionary H provides possible examples [h; h; . . . ; h] of the document feature vector y. The input text document is classified using a sparse representation text classification algorithm that solves for y=Hβ where a sparseness condition is enforced on β to select a small number of examples from the dictionary H to describe the document feature vector y.


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